Adafruit 8-channel Bi-directional Level Converter - TXB0108




$8.00 ea.
$7.20 ea.

Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find that they need to perform level shifting/conversion to protect the 3.3V device from 5V.

Description [Hide]

When making different devices talk, they can often be expecting/talking different voltages. This can be a bad thing, causing damaged chips that are being YELLED at by the more powerful device. You can make a simple converter with resistors and a transistor, but high speed transfers need cleaner signals than the resistor solution can offer.

That's where this lovely chip, the TXB0108 bi-directional level converter comes in! This chip perform bidirectional level shifting from pretty much any voltage to any voltage and will auto-detect the direction. Only thing that doesn't work well with this chip is i2c (because it uses strong pullups which confuse auto-direction sensor). If you need to use pullups, you can - but they should be at least 50K ohm, so the internal pullups in AVRs/Arduino will work fine.

Documentation [Hide]

Related Products [Hide]


Logic Level Converter

The SparkFun logic level converter is a small device that safely steps down 5V signals to 3.3V and steps up 3.3V to 5V. This level converter also works with 2.8V and 1.8V devices.

$1.95 USD


Arduino Due

The long awaited ARM board by Arduino is finally here, now you can access higher level functionality while still using the wildly popular Arduino IDE.

$49.95 USD


Concave Button

Got an application needing a button you can POUND on? This 35mm concave momentary push button is quite like the ones you find on arcade games.

$1.95 USD


TMP36 Temperature Sensor

This is a tidy analog temperature sensor with a functional range of -40C to +125C

$3.20 USD


HXT900 9g / 1.6kg / .12sec Micro Servo

HXT900, one of the most famous and the best value micro servos available. We have them here at Solarbotics!

$5.85 USD


Breadboard Jumper Wire Bundle

This 70-piece flexible wire jumper kit is sure to replace your old-style solid-wire jumpers. These are more flexible, robust, and easy to use!

$6.00 USD


Arduino USB Board (Uno R3)

The Arduino Uno is the all-new replacement for the favourite and popular Arduino Duemilanove. Now shipping R3!

$29.45 USD


Adafruit Pro Trinket - 3V 12MHz

Keep the UNO's fancy USB connection with none of the size! The Pro Trinket is the Arduino Compatible solution for all of your small project needs.

$9.95 USD


FTDI Basic Breakout (5V)

This is a basic breakout board for the FTDI FT232RL USB to serial IC. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 5V Arduino boards.

$14.95 USD


Solarbotics Raspberry SAFE

So your much anticipated Raspberry Pi board has arrived, you'll want to protect your precious! Use the Raspberry SAFE to protect it from the harmful environment that is your desk or TV stand.

$8.95 USD





Remember Me

Forgot Your Password?

Don't Have an Account?
Sign Up!